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Method for predicting a speed of a vehicle which is equipped with an antilock brake device

  • US 5,065,327 A
  • Filed: 07/24/1989
  • Issued: 11/12/1991
  • Est. Priority Date: 05/22/1989
  • Status: Expired due to Term
First Claim
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1. A method of estimating a speed of a vehicle which is equipped with an antilock brake device, said method comprising the steps of:

  • detecting wheel speeds of wheels of the vehicle respectively;

    selecting a highest value of all detected wheel speeds and differentiating a selected highest value to obtain a differentiated value; and

    correcting any of the wheel speeds based on said differentiated value, at least when one of the wheels associated with said one wheel speed shows a large decelerating tendency, to obtain a vehicle speed which is used as a reference value for determining a slip ratio of said one wheel.

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